Smoking pipe



J. J- DOERR SMOKING PIPE lAn/s/vr'or? JUSTIN J. Do ERR HT roe/v5) FiledJuly 19, 1946 Aug. 12, 1952 Patented Aug. 12, 1952 SMOKING PIPE JustinJ. Doerr, St. Louis, Mo.;. Grace Doerr executrix of said Justin J iDoerr, deceased.

Application July 1.9, 1946, Serial No; 684,692

This invention relates to certain new and useful improvements in smokingpipes.

It is the principal object of the present invention to provide a smokingpipe uniquely designed for the rapid and eflicient dissipation of heatand resultant cooling of the smoke prior to the time it reaches thesmokers mouth, thereby producing a cool smoke and also condensingsubstantially all of the tars, tar acids, nicotine, and other acrid, badtasting ingredients in tobacco smoke.

It is a. further object of the present invention to provide a smokingpipe having unique valve means adapted for controlling the draft throughthe pipe and sealing oil the bowl portion of the pipe from the stemportion, thereby preventing tar, nicotine, moisture, and other liquidswhich normally collect in the stem, from flowing reversely into the bowland rendering the bowl soggy. or, in extreme cases, running out into thecoat pocket of the user when the pipe is being carried during periods ofnon-use.

It is a further object of the present invention to provide a smokingpipe having a metallic stem and a wooden bowl connected in such a manneras to reduce to a minimum the normal conductive flowof heat from thebowl to the stem during actual use, the stem, furthermore, beinguniquely constructed so as to dissipate rapidly whatever heat may betransmitted from the bowl to'the stem, thereby providing a pipe whichmay be handled without danger of burning or scorching the usersfingersor hands.-

It is also an. object of the'present invention to provide a smoking pipehaving a metallic stem which may be readily taken apart and cleaned inavery simple, eificient, and thorough manner.

And with the above and other objects in view, myinvention resides in thenovel features of form, construction. arrangement, and combinationofparts presently described and pointed out in the claims.

In the accompanying drawings:

Figure 1 is a partly broken away top plan view ofa smoking pipeconstructed in accordance with and embodying the present invention;

Figure 2 is a longitudinal sectional view of the smoking pipe takenalong line 22 of Figure 1; V

Figure 3 is a side elevational so-called exploded view of the pipe;

Figures 4, 5, and 6, are fragmentary sectional views taken along-lines4-4, 5'-5, and 6-6, respectively, of Figure 2; and

Figure 7 is a fragmentarysectionalview similar to Figure 6 showing thevalve construction in "ofi or closed position.

Referring now in more detail, and by reference characters to thedrawings, A designates a smoking pipe constructed in accordance with thepresent invention which comprises a tubular 4 Claims. (Cl. 1319-212):

aluminum stem I preferably of circular crosssection throughout itslength, and integrally provided at its one end with a closure wall}. Ashort distance inwardly from the closure .wall 2, the stem l isintegrally provided with an enlargedbowl mounting section 3 preferablyof square cross section and provided upon its top wall 4 with anupwardly extending circular seat 5 which is peripherally undercut, as at6', for receiving a rounded or crlmped circular band 1 formed preferablyof copper or other suitable soft metal and adapted to. engage acomplementarily' undercut seat portion 8 formed integrally upon thelower end of a turned briar bowl 9, the band 1 thus serving to hold thebowl 9 firmly and tightly against the bowl seat 5. Furthermore, the bowl9 and seat 5 are provided with axially aligned bores In, H, the latterextending through and communicating with the interior of the stem l.

At its inner or open end, the stem I is flared slightly as at [2 andinteriorly ground to provide a tapered end socket I3 for snuglyreceiving a tapered collar portion 14 formed integrally with an inner orintermediate aluminum stem-tube 15 which is substantially smaller indiametral size than the inner diametral. size of the stem l and projectsthereinto and is integrally provided at its end with a diametrallyenlarged valve-. forming plug [6 having an integral closure-forming endwall It". Thevalve plug it, furthermore, is machined. upon its outercylindrical face H. to a substantially close tolerance for snug fittingrotative engagement, within the stem I. It will be notedthat theintermediate. stem-tube i5 is of such length that the plug 16' willextend beneath and project a short distance beyond the bore H when thecollar portion [4 is securely seated within the tapered end socket l3,terminating somewhatv short of the end wall 2 of the stem l in theprovision of a. small enclosed space s adapted to serve, as willpresently be pointed out, as a sort of moisture trap, and the plug [5 isprovided, upon its outer surface [1, with a pair of diametrally oppositeaxially extending milled slots, is opening at opposite ends to themoisture trap s and to the annular space between the stem l and theintermediate stem-tube l5. At its inner end, the tube i5 is providedwith a bit receiving extension ['9' internally bored adjacent to itsouter end in the provision. of a tapered bitsocket 2H, and is externallyprovided with a diametrally enlarged, collar portionv 2| which is, inturn, provided with diametrally opposite flats 22 disposedat to theslots l8 for the dual purpose of facilitating manipulation and" forvisibly indicating the relative position of the slots 18, inasmuch asthe latter are entirely concealed from view when the pipe A is fullyassembled. A short distance outwardly from the collar portion M, thestem-tube I5 is provided with diametrally opposite apertures 23 forproviding communication between the interior of the stem-tube I and theannular space between the inner face of the stem I and the stemtube I5.

Provided for disposition within the stem-tube I5 is a mouth piece or bit24 formed of Bakelite, hard rubber, or other suitable pipe-bit material,

and provided with a tapered seat25 andcylindrical insert portion 25diametrally sized and shaped for snug fitting disposition, respectively,within the tapered bit socket and the end portion IQ of the stem-tubeI5. Fixed within, and

projecting axially from, the outer end of the bit 24 is an aluminumbit-extension tube 2'l substantially smaller in external diametra1 sizethan the internal diametral size of the stem-tube I5, and opening at itsouter end a short distance from the closed end wall I6 of the stem-tube15. When the pipe is assembled for smoking, as shown in Figures 1 and'2,the flats 22' of the stem-tube I5 are gripped between the fingers androtated until they are more or less parallel withlthe vertical axis ofthe bowl 9 so that one of the slots I8" will be brought into underlyingregistration with the bore II through which smoke may be drawn when thesmoker applies suction to the mouth piece or bit 24. Insuch position,the other slot I8 will be disposed at its lowermost point so as toprovide a drainage and communication channel between the moisture trap sand the adjacent inner portion of the stem I. In such position, the bowl9 may be filled'with tobacco and smoked in the usual manner, whereuponthe smoke will travel downwardly through the bores II], II, and throughthe upper slot I8 into the annular space between the stem I and thestem-tube I5. Thereupon, the smoke reverses its direction and flowsoutwardly again into the open outer end of the bit extension 21,whereupon it reverses its direction again and flows inwardly through thebit extension 21 and the bit 24 into the mouth of the smoker. Duringthis attenuated and circuitous path of travel, the smoke is brought intointimate'contact with a relatively large area of metallic surfaces whichserve to absorb and conduct away the heat thereof, thus cooling thesmoke and condensingout of the smoke practically all of the tar, taracid, nicotine, and other acrid tasting components. The majority ofcondensation of moisture, tar, tar acid, and the like takes place in theannular space between the stem I and the stem-tube l5 and the condensedliquid material will drain downwardly into the bottom of the stem I andthence flow downwardly and outwardly through the lowermost slot I8 intothe moisture trap s. It should also be noted that the smoke, at thepoint of entry into the stem I, is substantially cooler because of thelarge mass of heat dissipating material, both in the valve plug portionI5, as well as in the seat forming portion 3. Furthermore, the amount ofheat transmitted from the burning coals within the pipe bowl to the stemproper is reduced to a minimum by reason of the fact that there are nometallic members extending from the interior of the bowl downwardly intoheat conductive relation with the stem I, and the connective ring 6 isexternally located so that it tends to radiate rather than transmit heatfrom the outer face of the lower portion of the bowl, and in the finalanalysis this ring is fairly remote from the area of actual combustionon the inside of the bowl 9.

When the smoker has finished smoking the pipe, the stem-tube I5 may berotated from the position shown in Figure 6 to the position shown inFigure 7, thereby closing off the bore- II and trapping all of themoisture andjcondensate within the pipe so that if the pipe is carriedin the pocket of the smoker there will be little danger of unpleasantdripping of liquid materials into the pockets of his clothing. When itis de- 1 sired, the pipe may be simply and readily cleaned by removingboth the bit 24 and the stem-tube I5 and flushing them out with alcoholor wiping them clean with a rag, tissue paper, pipe cleaner, or othersuitable means.

It should be understood that changes and modifications in the form,construction, arrangement, and combination of the several parts of thesmoking pipe may bemade and substituted for those herein shown anddescribed. without departing from the nature and principle of myinvention. i

Having thus described my invention, whatI claim and desire to secure byLetters Patent is:

'1. A smokingpipe comprising a stem, a bowl 7 mounted on said stem andhaving an opening thereinto, a tube of smaller diameter manur stemdisposed concentrically within said stem and beingprovided onits outerend with an enlarged valve-formingplug extending beyond the bowl openingand having an external diametral size substantially equal to theinternal diametral size of the stem for snug-fitting slidable engagementtherewith wherebyto divide the stem into a moisture trap on one side ofthe ibowl-and a smoke chamber on the other side of the bowl, a closurewall provided on the end of said plug forming one wall of the moisturetrap, the outer surface of said plug being provided with-first andsecond longitudinal slots located on diametrically opposite sides of thevalve-forming plug, means for rotating said plug whereby in one positionthe bowl opening is in registration with the first slot forcommunicationwith themterior of the bowl and the second slot' provides apassageway-along the bottom of-th stem between the smokechamberand;themoistpre trap and whereby in-a second positioncommunication between the bowl opening and the smokejchame her isprevented, and a mouth bit meansmounted insaidtube. ;;i 5',

2.-A smoking pipe comprisinga stem;:a bowl mounted on said stem,and-having an'opening thereinto, a tube of smaller diameter than: thestem disposed concentrically,withinysaid stem and beingprovided onits;outer end with an-enlarged valve-forming plug extending beyondl -thebowl opening and having an exterjnalydiametral size substantially equalto the internaldiametral size of the stem for snug-fitting slidableengagement therewith whereby to divide the'stem into a moisture trap onone sided the bowl anda smoke chamber on the other side of the bow1,aclosure wall provided on the end of said plug forming: one wall of themoisture trap, the outer surface-of said plug being provided with firstand second longitudinal slots located on diametrally opposite sides ofthe valve-forming plug, means on the inner end of said tube forindicating the position of saidslots relative to said bowl opening. andfor rotation of said plug whereby in'one position the bowl opening is inregistration with the first slot for communication with-the interior ofthe bowl and the second slot provides a passageway along the bottom. ofthe stem. between the smoke chamberandthe moisture trap and whereby in asecond "position communication between the bowl opening and the smokechamber is prevented, and a mouth bit means mounted in said tube.

3. A smoking pipe comprising a stem, a bowl mounted on said stem andhaving an opening thereinto, an intermediate tube removably disposedconcentrically within said stem and being provided on its outer end witha diametrally enlarged valve-forming plug extending beyond the bowlopening and at its inner end with a tapered collar for engagement withthe end of the stem, said plug having a pair of axially extendingdiametrally opposite longitudinal slots formed in its outer surface,means for rotating said plug for optional registration of one of theslots with the bowl opening, and a mouth bit means mounted reinovably onthe end of said tube having a draft tube extending coaxially outwardlyinto the intermediate tube.

4. A smoking pipe comprising a stem, a bowl mounted on the stem andhaving an opening con meeting the interior of the bowl with the interiorof the stem, an intermediate tube removably disposed concentricallywithin the stem, said intermediate tube having an outside diametral sizesubstantially smaller than the inside diametral side of the stem, saidtube having a diametrally enlarged valve-forming :plug at the outer endthereof snugly and rotatably fitted within the stern, said tube furtherbeingprovided adjacent its inner end with a diametrally enlarged collar,the distance between the collar and the plug being substantially shorterthan the overall length of the stem so that a moisture trapping chamberis formed between the outer end of the plug and the end of the stem andan outer annular smoke chamber is formed betwen the plug and the collar,said valve-forming plug being provided;

upon its outer surface with a pair of axially extending diametrallyopposite slots opening at their ends respectively to the moisturetrapping chamber and the outer smoke chamber, said 'intermediate tubebeing provided adjacent to and outwardly of the collar with a pair ofdiametrally opposite apertures, a mouth bit removably mounted at theouter end of th intermediate tube and having a smoke tube extendingooaxially into the intermediate tube, said smoke tube beingsubstantially smaller in diameter than the intermediate tube andterminating at its outer end adjacent to, but somewhat short, of theplug-end of said intermediate tube so that when one of the slots isaligned with the opening between the bowl and the stem and the pipe issmoked by the smoker, smoke will be drawn into the outer smoke chamberin the direction of the mouth bit and thence through the apertures intothe annular space between the smoke tube and into the interior of theintermediate tube and thence outwardly to the open outer end of theannular smoke tube and finally inwardly through the smoke tube and outof the mouth bit in such a manner that volatile tars and moistureglobules carried by the smoke will be substantially condensed and willrun outwardly along the bottom interior face of the stem andthrough thedownwardly disposed valve-plug slot into the moisture trap so as toprovide a substantially clean cool smoke.

JUSTIN J. DOERR.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 493,150 Chorley Mar. 7, 18931,065,008 Tufts June 17, 1913 1,511,693 Gaisman Oct. 14, 1924 1,886,124Sasser Nov. 1, 1932 2,124,221 Jacobs July 19, 1938 2,146,256 Gobel rFeb. 7, 1939 2,250,643 Mariani July 29, 1941 2,288,879 Ballentine July7, 1942 2,293,221 Rubens Aug. 18, 1942 2,357,018 Miller Aug. 29, 1944FOREIGN PATENTS Number Country Date 833,388 France July 18, 1938 14,895Great Britain or" 1887 3,309 Great Britain of 1890 85,615 SwitzerlandJuly 16, 1920- 116,195 Switzerland Aug. 2, 1926

